RetroSearch Browse

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://en.cppreference.com/w/cpp/language/../algorithm/../header/cfloat.html below:

Standard library header <cfloat> - cppreference.com

This header was originally in the C standard library as <float.h>.

This header is part of the type support library, in particular, it is a part of the C numeric limits interface.

[edit] Macros the radix (integer base) used by the representation of all three floating-point types
(macro constant) [edit] conversion from long double to decimal with at least DECIMAL_DIG digits and back to long double is the identity conversion: this is the decimal precision required to serialize/deserialize a long double (see also std::numeric_limits::max_digits10)
(macro constant) [edit]

FLT_DECIMAL_DIGDBL_DECIMAL_DIGLDBL_DECIMAL_DIG

(C++17)

conversion from float/double/long double to decimal with at least FLT_DECIMAL_DIG/DBL_DECIMAL_DIG/LDBL_DECIMAL_DIG digits and back is the identity conversion: this is the decimal precision required to serialize/deserialize a floating-point value (see also std::numeric_limits::max_digits10). Defined to at least 6, 10, and 10 respectively, or 9 for IEEE float and 17 for IEEE double.
(macro constant) [edit] minimum normalized positive value of float, double and long double respectively
(macro constant) [edit]

FLT_TRUE_MINDBL_TRUE_MINLDBL_TRUE_MIN

(C++17)

minimum positive value of float, double and long double respectively
(macro constant) [edit] maximum finite value of float, double and long double respectively
(macro constant) [edit]

FLT_EPSILONDBL_EPSILONLDBL_EPSILON

difference between 1.0 and the next representable value for float, double and long double respectively
(macro constant) [edit] number of decimal digits that are guaranteed to be preserved in text → float/double/long double → text roundtrip without change due to rounding or overflow (see std::numeric_limits::digits10 for explanation)
(macro constant) [edit]

FLT_MANT_DIGDBL_MANT_DIGLDBL_MANT_DIG

number of base FLT_RADIX digits that can be represented without losing precision for float, double and long double respectively
(macro constant) [edit]

FLT_MIN_EXPDBL_MIN_EXPLDBL_MIN_EXP

minimum negative integer such that FLT_RADIX raised by power one less than that integer is a normalized float, double and long double respectively
(macro constant) [edit]

FLT_MIN_10_EXPDBL_MIN_10_EXPLDBL_MIN_10_EXP

minimum negative integer such that 10 raised to that power is a normalized float, double and long double respectively
(macro constant) [edit]

FLT_MAX_EXPDBL_MAX_EXPLDBL_MAX_EXP

maximum positive integer such that FLT_RADIX raised by power one less than that integer is a representable finite float, double and long double respectively
(macro constant) [edit]

FLT_MAX_10_EXPDBL_MAX_10_EXPLDBL_MAX_10_EXP

maximum positive integer such that 10 raised to that power is a representable finite float, double and long double respectively
(macro constant) [edit] default rounding mode of floating-point arithmetic
(macro constant) [edit] specifies in what precision all arithmetic operations are done
(macro constant) [edit]

FLT_HAS_SUBNORMDBL_HAS_SUBNORMLDBL_HAS_SUBNORM

(C++17)

specifies whether the type supports subnormal (denormal) numbers:
-1 – indeterminable, â0â – absent, 1 – present
(macro constant) [edit] [edit] Synopsis

#define FLT_ROUNDS           /* see definition */
#define FLT_EVAL_METHOD      /* see definition */
#define FLT_HAS_SUBNORM      /* see definition */
#define DBL_HAS_SUBNORM      /* see definition */
#define LDBL_HAS_SUBNORM     /* see definition */
#define FLT_RADIX            /* see definition */
#define FLT_MANT_DIG         /* see definition */
#define DBL_MANT_DIG         /* see definition */
#define LDBL_MANT_DIG        /* see definition */
#define FLT_DECIMAL_DIG      /* see definition */
#define DBL_DECIMAL_DIG      /* see definition */
#define LDBL_DECIMAL_DIG     /* see definition */
#define DECIMAL_DIG          /* see definition */
#define FLT_DIG              /* see definition */
#define DBL_DIG              /* see definition */
#define LDBL_DIG             /* see definition */
#define FLT_MIN_EXP          /* see definition */
#define DBL_MIN_EXP          /* see definition */
#define LDBL_MIN_EXP         /* see definition */
#define FLT_MIN_10_EXP       /* see definition */
#define DBL_MIN_10_EXP       /* see definition */
#define LDBL_MIN_10_EXP      /* see definition */
#define FLT_MAX_EXP          /* see definition */
#define DBL_MAX_EXP          /* see definition */
#define LDBL_MAX_EXP         /* see definition */
#define FLT_MAX_10_EXP       /* see definition */
#define DBL_MAX_10_EXP       /* see definition */
#define LDBL_MAX_10_EXP      /* see definition */
#define FLT_MAX              /* see definition */
#define DBL_MAX              /* see definition */
#define LDBL_MAX             /* see definition */
#define FLT_EPSILON          /* see definition */
#define DBL_EPSILON          /* see definition */
#define LDBL_EPSILON         /* see definition */
#define FLT_MIN              /* see definition */
#define DBL_MIN              /* see definition */
#define LDBL_MIN             /* see definition */
#define FLT_TRUE_MIN         /* see definition */
#define DBL_TRUE_MIN         /* see definition */
#define LDBL_TRUE_MIN        /* see definition */

[edit] See also

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4